She, of course, is correct. However, when women are entering previously-unchartered territory, we sometimes have to behave in accordance with accepted gender norms in order to hold onto our places in those worlds. In other words, we can't be perceived as a threat to men. On the other hand, we also have to do whatever we're doing in our own way--and, indeed, we often have to figure out what that way is--in order not to be seen as inferior to the men who are doing whatever it is we're doing.
I know from whence I speak: In my transition from living as a man to my life as a woman, I have been criticized for being too much like a man and too much like a woman--sometimes by the very same people. The same people who told me I was too aggressive on the job told me, in the next breath, that I was too submissive--"like a woman." It's a bit like telling a woman she throws too hard for a girl but that she "throws like a girl".
I thought about that when I came across this list of "don'ts" for female cyclists that was published in the New York World in 1895:
Some of these "don'ts" made me cringe. But I had to get a laugh out of "Don't try to ride in your brother's clothes 'to see how it feels'!"